CN2154038Y

CN2154038Y - Auto-adjusting lieable wheelchair

Info

Publication number: CN2154038Y
Application number: CN 93205003
Authority: CN
Inventors: 杨清昆; 杨清临
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-23
Filing date: 1993-02-23
Publication date: 1994-01-26
Anticipated expiration: 2003-02-23

Abstract

The utility model relates to a novel wheelchair for disabled people. A patient sits on the wheelchair and self-adjusts the back inclination of a backrest and positions the backrest until the wheelchair is changed into a bed for lying. The utility model is characterized in that the wheelchair frame is movably hinged with the backrest frame and a foot-rest, an operating lever and a shaft of a gear are arranged under the wheelchair frame, and the gear drives a backrest stay and the backrest frame. The back side of the foot-rest is provided with a sliding slot connected with the stay, and the other end of the stay is fixed on a shaft with a handle; When the foot-rest is upwards turned 90 DEG to the horizontal plane, the wheelchair is deformed to a bed. The wheelchair has the advantages that the comfort is enhanced, and patients can easily and conveniently self-adjust the wheelchair.

Description

Auto-adjusting lieable wheelchair

This utility model relates to the invalid wheelchair of lower limb disability.

Existing wheelchair can not change backrest angle according to the state of an illness or patient's needs, if sitting is tired when needing changing position, needs other people to assist to leave wheelchair rests of lying down to the bed, has not only consumed one's strength but also inconvenience concerning patient; In addition, patient has meal and transfusion etc. also need be left wheelchair and carry out.

The purpose of this utility model provides a kind of self-regulated wheelchair with reclining back, and patient or people with disability are sitting on the wheelchair just can finish the moving action of lying down or sit up voluntarily, can also have meal on wheelchair and infuse.

The purpose of this utility model can take following measure to realize: adopt between chair frame and back rest and pedal to flexibly connect, as hinged, below the chair frame joystick shaft is housed, on the axle stick and driving gear are arranged, driven gear that is engaged with and backrest strut are contained on the strut axle, and the other end of backrest strut and connecting rod are connected in long slot bore place on the backrest slide plate by pin.Its microscler chute place at the pedal back side is connected with front strut by pin, and the front strut other end is fixed on the Handle axis that is connected under the chair frame, and handle is contained in an end of Handle axis.

The purpose of this utility model can also take following measure to realize: be connected with gimbal lever's axle under the chair frame, the gimbal lever and the backgear of a foundation end band pulley fixed in this stage casing, and the idler gear that is engaged with is fixed on the strut axle.

Stick can be located in the locating rack upper latch notch.

The handrail inboard of wheelchair is hinged with panel, goes to level and with the bracing frame support, can do the use of tea table plate.

Hinge one block length platen rides on the other end arm-rest frame when rotation makes it on the handrail inboard of wheelchair, can make interim dining table.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is an axonometric chart of the present utility model.

Fig. 2 is a side view of the present utility model.

Fig. 3 is the sketch map after wheelchair of the present utility model is deformed into sick bed.

Front view when Fig. 4 does the tea table use for wheelchair of the present utility model.

Fig. 5 is a wheelchair double as dining table of the present utility model vertical view when using.

As shown in the figure, chair frame (22) links to each other by hinge between (21) with back rest (6), pedal, and backrest can recede to suitable angle and location as required.Upwards overturn an angle of 90 degrees during to horizontal level when backrest being put backward to putting up the 180 degree horizontal levels at angles and pedal with chair, and wheelchair just is deformed into sick bed shown in Figure 3.

The operating mechanism of backrest hypsokinesis is by finishing with lower member: be positioned at latter half under the chair frame, and cross joystick shaft (17), backrest strut axle (5) and gimbal lever's axle (18) under frame, three axles all are horizontally disposed with.The fan-shaped driving gear (2) of stick (1) and interlock all is installed at the two ends of joystick shaft, driven gear that is engaged with (3) and backrest strut (4) are installed on the backrest strut axle (5), the backrest strut other end and a connecting rod (8) are connected in the elongate slot (11) on the back rest back slide plate (10) with pin (9), and pin (9) can slidably reciprocate in slotted eye.On patient's wheelchair, both hands push away stick forward, driving gear (2) is rotated around axle (17), driving driven gear (3) and backrest strut (4) is center of circle adverse movement with axle (5), owing between strut and backrest certain angle is arranged, during motion, the pin that links to each other (9) of strut (4) and connecting rod (8) moves upward along slotted eye (11) on the one hand, spur backrest on the other hand and recede, promote simultaneously to launch with the back universal wheel post (7) of connecting rod riveted joint.When the backrest hypsokinesis was level, wheel post (7) launched at an angle of 90.

On chair frame and handrail, be positioned at the handrail outside and be fixed with locating rack (16) with a plurality of bayonet sockets (20), stick is pushed into the bayonet socket of setting on the locating rack, as 15 degree angles, miter angle, an angle of 90 degrees etc. also block, backrest also just is parked on the corresponding hypsokinesis angle, and the range of accommodation of back rake angle is by bayonet socket decision default on the locating rack.

By designing requirement, in the process of backrest hypsokinesis, the fan-shaped idler gear (12) at backrest strut axle (5) middle part drives the gimbal lever (13) that is fixed on the sector gear (14) on gimbal lever's axle (18) and has pulley (15) and launches backward.When stick was positioned at miter angle, the bottom that pulley is equipped with in the gimbal lever is kiss the earth just, stick can be pushed into this moment on the locating rack on the 45 degree bayonet sockets, and then backrest also is positioned at this angle; When greater than miter angle, gimbal lever's pulley begins built on stilts, continues to launch backward, launches to close kiss the earth until the back universal wheel.

It is as follows that the pedal of wheelchair (21) is upwards turned over the mechanism and the course of action that turn 90 degrees: be positioned at chair frame front end below a Handle axis of crossing (19) is arranged, this axle one end fixed handle (23), also be fixed with two front struts (24) on the axle by the stage casing, the front end of each strut is by in the microscler chute (27) of pin (26) positioning and fixing on pedal back side slide plate (25), this connecting pin can move around in chute, when pulling down handle backward, driving two struts is that upwards rotate in the center of circle with the Handle axis, promotes to turn on the pedal.At the chute epimere limited bayonet (28) is arranged, when turning on the pedal when 90 spend, pin just in time enters in the bayonet socket and blocks, and in the time of need being deformed into wheelchair, only needs lift pedal slightly, upwards moves handle and gets final product.

It is opposite with the process of putting of retreating backrest to be pulled upwardly the operation program that becomes wheelchair.

At inboard each the hinged tea table panel (30) of two handrails, its back side is fixed with bracing frame (31) can prop up panel the head of a bed tea table usefulness of doing other, as shown in Figure 4.The on the left side handrail outside is hinged with a platen (29) and can makes interim dining table, gets final product on the handrail on the right of platen upset 270 degree backs one end rides over, as shown in Figure 5.

The time spent does not hang over the handrail side for platen and tea table panel.

Adorn a drip stand (32) of regulating height by screw (33) in the right armrest rear end

The wheelchair purposes that this utility model provides is wide, and self-regulated is easy to operate to have strengthened patient comfort easily, has expanded the function of wheelchair.

Claims

1, a kind of self-regulated wheelchair with reclining back, by handrail, back rest (6), chair frame (22), handwheel below the chair frame, the pedal (21) of preceding universal wheel and chair frame front is formed, and it is characterized in that:

A, chair frame (22) flexibly connect with back rest (6), as hinged, be positioned on the joystick shaft (17) below the chair frame stick (1) and fan-shaped driving gear (2) are housed, be installed on the strut axle (5) with the fan-shaped driven gear (3) and the backrest strut (4) of this gears engaged, the backrest strut other end and connecting rod (8) are located by the long slot bore (11) that pin (9) is connected in backrest slide plate (10);

B, chair frame (22) front end and pedal (21) flexibly connect, as hinged, be positioned on the Handle axis (19) of forward end below the chair frame handle (23) and front strut (24) are housed, the other end of this strut is located by the microscler chute (27) that pin (26) is connected the slide plate (25) at pedal (21) back side.

2, wheelchair according to claim 1, it is characterized in that being positioned on the strut axle (5) center fixed has a fan-shaped idler gear (12), has the gimbal lever (13) of pulley (15) to be installed on gimbal lever's axle (18) parallel with joystick shaft (17) with the backgear (14) that this gear is meshed with a foundation end.

3, wheelchair according to claim 1 is characterized in that stick (1) can snap on the locating rack (16) that is fixed on handrail and the chair frame, has two bayonet sockets (20) at least on this.

4, wheelchair according to claim 1 is characterized in that the panel (30) of each hinged back side band bracing frame (31) of inboard of handrail, a on the left side handrail outside hinged platen (29).